Physics books are the perfect bridge between those who want to share their knowledge and those who wish to learn new things. Furthermore, must-reads books are some of the best…

Stripe is a technology company that tries to build economic infrastructure for the internet. Their motto is, “Increase the GDP of the internet!”…

“The Mechanical Universe” is a critically-acclaimed series of 52 thirty-minute videos, filmed at the California Institute of Technology, covering the basic topics of an introductory university physics course from Copernicus to quantum mechanics. …

For a child’s education to be successful, science and mathematics must be a priority both now and in the future. On the other hand, when do children begin to investigate…

The famous mathematician John von Neumann once said, “In mathematics, you don’t understand things; you just get used to them.” However, we can’t entirely agree with him. We believe that…

Ernst Haeckel was a German biologist and philosopher. He was the founder of embryology. But most importantly, he was an insanely talented artist….

A 19th-century French-born artist Etienne Leopold Trouvelot had a job at Harvard College’s observatory, and he created sketches of astronomical observations. Although Trouvelot himself is less well-known for his astronomical…

The Springer Undergraduate Series is a series designed for undergraduates in mathematics and the sciences worldwide. From core foundational material to final year topics, SUMS books take a fresh and modern approach….

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## Featured Directories

### 24 Utterly Unique Math Tools That Every Math Person Must Know

Mathematics is an utterly interesting subject. And some unique math apps make everyone discover how intriguing math really is.

### Best Physics Textbooks to Learn Physics

Learning physics is open to everyone, and it is the same as learning computer programming or how to make a delicious pizza! Good physics textbooks help you learn physics. And…

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### Kokichi Sugihara’s Mind-Bending Optical Illusions

Optical illusions are fascinating due to their ability to distort our perception of reality. But have you ever seen Kokichi Sugihara's three-dimensional optical illusions that appear to defy the laws…

- Arts ,
- Mathematics ,
- Physics ,

### Crazy Circle Illusion: Are These Dots Moving in a Circle?

Have you ever seen a mind-bending illusion that left you struggling to believe in reality? This Brusspup's Crazy Circle Illusion was a viral sensation that swept the internet and left…

- Geometry ,

### Why so many people need glasses now?

Have you noticed that more and more people around you are wearing glasses these days? Well, you are not alone, as the rates of myopia or near-sightedness have been increasing…

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## Tools

### Here is Today

Here is Today is an interactive visualization of time, spanning from this moment back to the birth of the universe. The HTML5 site gives a real sense of the scale…

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/r/IWantToLearn is a beautiful online community which is dedicated to assisting people in learning new things.

## Featured Books

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### My Favorite Theorem

Evelyn Lamb and Kevin Knudson talk with mathematicians about theorems! The podcast is also about who those mathematicians are as people.

- Mathematics ,
- Science ,

### Mathematical Moments

Mathematical Moments promotes appreciation and understanding of the role mathematics plays in science, nature, technology, and human culture.

- Education ,
- History ,
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### The Numberphile

Interviews with people who love numbers and mathematics. Hosted by Brady Haran, maker of the Numberphile series on YouTube.

- Education ,
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## DIY

### How to Make a Fire Extinguisher?

Create your invisible fire extinguisher. The mixture of baking soda and vinegar creates carbon dioxide. CO2 is heavier than air, so it sits at the bottom of the glass. When…

### How to Make Invisible Ink?

Write your secret message in an invisible ink solution. Lemon juice is an organic substance that reacts with oxygen in the surrounding air, oxidizes, and turns brown. By placing the…

### Colared Carnations Science Experiment

Create multi-colored flowers. Plants need a transport system to move food, water, and minerals around. Two things combine to move water through plants – transpiration and cohesion. Water evaporating from…